StockCIK 1921865
ASP Isotopes Inc. (ASPI): Insider Trades and Fund Holdings
In the past 12 months, ASP Isotopes Inc. insiders reported 2 open-market purchases worth $62K and 8 sales worth $1.32M; 6 of the sales were reported as made under a 10b5-1 trading plan.
2Insider buys, 12 months
$62KBought by insiders, 12 months
$1.32MSold by insiders, 12 months
0Tracked funds holding
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 21, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 21 | Heather KiesslingCFO | ▼ SELL | $48K |
| Oct 16 | Robert AinscowCOO | ▼ SELL10b5-1 | $48K |
| Oct 1 | Robert John Andrew RyanDirector | ▲ BUY | $40K |
| Sep 30 | Robert John Andrew RyanDirector | ▲ BUY | $22K |
| Sep 10 | Robert AinscowCOO | ▼ SELL10b5-1 | $36K |
| Sep 4 | Paul Elliot MannCEO | ▼ SELL10b5-1 | $343K |
| Sep 4 | Paul Elliot MannCEO | ▼ SELL10b5-1 | $328K |
| Sep 4 | Paul Elliot MannCEO | ▼ SELL10b5-1 | $327K |
| Sep 4 | Robert AinscowCOO | ▼ SELL10b5-1 | $98K |
| Sep 4 | Donald George AinscowEVP | ▼ SELL | $92K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Heather Kiessling | CFO | 0 | $0 | 1 | $48K |
| Robert Ainscow | COO | 0 | $0 | 3 | $181K |
| Robert John Andrew Ryan | Director | 2 | $62K | 0 | $0 |
| Paul Elliot Mann | CEO | 0 | $0 | 3 | $999K |
| Donald George Ainscow | EVP | 0 | $0 | 1 | $92K |
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Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →